Volume 69, Part 5 (May 2013)

metal-organic compounds

Abstract: The asymmetric unit of the title structure, [CoCl2(C3H11NOP)4][CoCl4]2, consists of one half of the trans-dichloridotetrakis[(dimethylphosphoryl)methanaminium]cobalt(II) tetracation lying on an inversion center and one tetrachloridocobaltate(II) dianion on a general position. Four O-coordinated cationic (dimethylphosphoryl)methanaminium (dpmaH+) ligands occupy the equatorial coordination sites, whereas the chloride ligands occupy axial positions of the roughly octahedral coordination polyhedron of the cobalt metal center. Intramolecular hydrogen bonds between the aminium groups and the O atom of the phosphoryl groups and additional hydrogen bonds between the aminium groups and the chloride ligands are present. Furthermore, four of the six H atoms not involved in intramolecular bonding of each cobalt(II) tetracation form weak hydrogen bonds to four adjacent tetrachloridocobaltate(II) counter-anions. By these intermolecular hydrogen bonds, one-dimensional polymeric strands are formed along the b-axis direction. The hydrogen bonding is analyzed using the graph-set method and the structural similarity with dpmaHCl is discussed.

To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.